Question
‘E’ takes 30 days to complete a job. If ‘F’ is
50% more efficient than ‘E’, how many days will they take together to complete 75% of the work?Solution
Let the work be 100x units.
Efficiency of ‘E’ = 100x ÷ 30 = ‘10x/3’ units/day
Efficiency of ‘F’ = (10x/3) × 1.5 = ‘5x’ units/day
75% of the work = 100x × 0.75 = 75x units
Required time = 75x ÷ ((10x/3) + 5x) = 75x ÷ ((10x + 15x)/3) = 75x ÷ (25x/3) = 9 days
A shopkeeper purchases 140 kg of sugar at Rs. 55 per kg. He sells a portion of it at a 20% profit and the remaining at a 10% loss. If his total profit i...
The cost price of an article is 30% less than its selling price. For how much profit was it sold? (Round off up to 2 decimal plac...
A man bought two articles for $800 each. He sold one at a profit of 20% and the other at a loss of 25%. What is the overall profit or loss percentage?
A dishonest seller, at the time of selling and purchasing uses weight 10% less and 20% more per kg respectively. Find the approx. percent profit earned...
A school bag is sold for Rs.450 after giving two successive discounts of 10% and 20%. If school bag is marked up by Rs.300 above its cost price, then fi...
An item is marked up by 60% over its cost price and sold with two successive discounts of 15% and 10%. What is the shopkeeper’s profit or loss percent...
- A trader purchases an article for Rs. 2,600. It is marked at 20% above cost price and then sold after offering a discount of Rs. 200. Determine the profit ...
A shopkeeper purchases six small cold drink bottles for Rs. 100. For how much should he sell one such bottle to get a profit of 20%?
If the selling price and cost price of a book is Rs. 440 and Rs. 320, then find the profit percentage in this transaction.
Two vendors sell an electronic gadget for Rs. 1500, making a profit of 20%. One vendor calculates his profit based on cost price, while the other consid...
Relevant for Exams:
